ICD-10 Code E30.1 – Precocious puberty (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E30.1 – Precocious puberty
What it is
Precocious puberty means pubertal development begins earlier than expected for age. Use this code when documentation identifies early onset of secondary sexual characteristics or pubertal progression.
Clinical signs
Findings may include early breast development, pubic hair, testicular enlargement, or other pubertal changes before the usual age range. Clinical features vary; refer to documentation.
When to use this code
Use E30.1 when the provider documents precocious puberty, early puberty, or central/peripheral pubertal development that is abnormal for age. It may appear in pediatric endocrine evaluations, growth concerns, or workups for early sexual maturation. Check documentation if the record does not clearly state the diagnosis.
Do not use for
Do not use this code for isolated normal variant pubertal timing without a diagnosis of precocious puberty. Do not assign it when the chart only mentions suspected early development and the provider has not confirmed the condition.
Coding tip
Code only when the diagnosis is explicitly documented; if the note is vague, query the provider.